臺燈亮度自動調(diào)節(jié)電路系統(tǒng)的臺燈設(shè)計論文

1、1摘要臺燈亮度自動調(diào)節(jié)電路系統(tǒng)以STC12C5A60S2單片機為中央控制單元，通過光敏電阻等擴(kuò)展模塊，實現(xiàn)了根據(jù)外界光照強度變化臺燈自動調(diào)節(jié)亮度的功能。該設(shè)計主要實現(xiàn)了臺燈亮度的自動調(diào)節(jié)，單片機通過光敏電阻來獲取外界的光強信息并將該信息轉(zhuǎn)換成數(shù)字信號。通過紅外模塊系統(tǒng)判斷臺燈附近是否有人，無人時臺燈不工作，有人在附近時，臺燈會自動開啟。當(dāng)人離開一段時間后臺燈會自動關(guān)閉并作出提醒，這樣便有效地節(jié)約了能源。此外系統(tǒng)還帶有時間顯示的功能，通過

2、按鍵調(diào)節(jié)可以對時間進(jìn)行校正。經(jīng)過測試，各模塊的功能均能正常實現(xiàn)，同時該系統(tǒng)還具有控制簡單、反應(yīng)靈敏等優(yōu)點。關(guān)鍵詞：關(guān)鍵詞：STC12C5A60S2單片機；光敏電阻；PWM波；紅外感應(yīng)3目錄1緒論..........................................................................................................................6

3、1.1研究課題的背景與意義...............................................................................61.2本課題的研究內(nèi)容及實施方案...................................................................71.3論文內(nèi)容安排..................................

4、.............................................................82整體方案設(shè)計..........................................................................................................82.1整體邏輯框圖...................................

5、............................................................82.2方案論證.......................................................................................................93硬件方案設(shè)計.........................................

6、...............................................................113.1STC12C5A60S2最小系統(tǒng).........................................................................113.2光敏電阻......................................................

7、...............................................123.2.1光敏電阻的性質(zhì)..............................................................................123.2.2光敏電阻模塊電路圖.................................................................

8、.....153.3液晶顯示屏1602........................................................................................153.3.11602簡介.........................................................................................153.3.21602

9、與單片機連接圖.....................................................................173.4時鐘芯片DS1302.......................................................................................183.5紅外傳感器................................

10、.................................................................193.6按鍵模塊.....................................................................................................203.7蜂鳴器電路...................................

11、..............................................................204軟件設(shè)計................................................................................................................214.1整體軟件流程圖...........................

12、..............................................................214.2各子模塊功能設(shè)計.....................................................................................224.2.1STC12C5A60S2單片機AD轉(zhuǎn)換模塊................................

13、.........224.2.2STC12C5A60S2單片機中斷模塊..................................................254.2.3單片機定時器模塊..........................................................................274.2.4光線采集的實現(xiàn)................................

14、..............................................304.2.5自動斷電功能的實現(xiàn)......................................................................314.2.6LCD顯示模塊..........................................................................

15、.......324.2.7時鐘模塊..........................................................................................354.3軟件開發(fā)環(huán)境.............................................................................................364.3.1K

16、EIL簡介........................................................................................364.3.2STCISP簡介...................................................................................375系統(tǒng)調(diào)試......................

17、..........................................................................................395.1焊接.............................................................................................................395.2調(diào)試結(jié)果.....

18、................................................................................................40總結(jié)與展望..................................................................................................................42參